Front disk sqeals again

Message

Sev · #11 Unread post by **Sev** » Wed May 16, 2007 2:38 pm

Skier wrote:
ofblong wrote:
Skier wrote:Did you properly apply anti-squeal compound when you had the calipers off?
Why use this stuff? I mean its serves no real purpose. I compare it to using belt dressing on a belt. pointless cause it doesnt really work and just bandaids the true problem
How does eliminating the pad vibrating between the piston and the rotor "bandaid" the issue? It's called for in every vehicle I've changed brakes on and those don't squeal. They must be doing something right.

Don't argue with ofblong, he doesn't let lack of mechanical knowledge or information get in the way of his opinions.

jonnythan · Wed May 16, 2007 3:13 pm

flw wrote:
Skier wrote:Did you properly apply anti-squeal compound when you had the calipers off?
I applied disk brake cleaner from a spray can, I don't know if that is the same or not.

No. Auto parts stores sell this grease that you're supposed to apply to the pads to help them stop squeaking.

jonnythan · Wed May 16, 2007 3:14 pm

ofblong wrote:
Skier wrote:Did you properly apply anti-squeal compound when you had the calipers off?
Why use this stuff? I mean its serves no real purpose. I compare it to using belt dressing on a belt. pointless cause it doesnt really work and just bandaids the true problem

The problem *is* the squeaking.

#14 Unread post by **Skier** » Wed May 16, 2007 4:08 pm

My Civic has ceramic pads up front and those are some of the most squeal-prone materials you can get. I applied the anti-squeal compound included with the pads properly and they just do not squeal. It's recommended by Valvoline, the F650 brake FAQ, About.com's brake squeal page and a plethora of other sources, including most brake pad manufacturers.

ofblong · #15 Unread post by **ofblong** » Wed May 16, 2007 4:29 pm

Skier wrote:
ofblong wrote:
Skier wrote:Did you properly apply anti-squeal compound when you had the calipers off?
Why use this stuff? I mean its serves no real purpose. I compare it to using belt dressing on a belt. pointless cause it doesnt really work and just bandaids the true problem
How does eliminating the pad vibrating between the piston and the rotor "bandaid" the issue? It's called for in every vehicle I've changed brakes on and those don't squeal. They must be doing something right.

using liquid spray is bandaiding the issue. what is causing the breaks to squeal? Something isnt correctly tightened or there is something else wrong.

ofblong · #16 Unread post by **ofblong** » Wed May 16, 2007 4:30 pm

Skier wrote:My Civic has ceramic pads up front and those are some of the most squeal-prone materials you can get. I applied the anti-squeal compound included with the pads properly and they just do not squeal. It's recommended by Valvoline, the F650 brake FAQ, About.com's brake squeal page and a plethora of other sources, including most brake pad manufacturers.

ok well I dont use ceramic pads and the OP didnt mention ceramic pads so i "assumed" they were normal pads.

Sev · #17 Unread post by **Sev** » Wed May 16, 2007 4:42 pm

ofblong wrote:
Skier wrote:
ofblong wrote:
Skier wrote:Did you properly apply anti-squeal compound when you had the calipers off?
Why use this stuff? I mean its serves no real purpose. I compare it to using belt dressing on a belt. pointless cause it doesnt really work and just bandaids the true problem
How does eliminating the pad vibrating between the piston and the rotor "bandaid" the issue? It's called for in every vehicle I've changed brakes on and those don't squeal. They must be doing something right.
using liquid spray is bandaiding the issue. what is causing the breaks to squeal? Something isnt correctly tightened or there is something else wrong.

Actually, some brakes just squeal something to do with the type of apds, and what goes into making them. As far as unintentional squealing... it might be a question of the brake compound itself coupled with an irregularity in the disks. It may be a clearance issue, or it may be a design thing.

It's possible that he has glazed pads, it's possible that he picked something up that is now stuck between the pads and the disk, or maybe the brake discs were not correctly cleaned when the bike was PDI'ed so now the pads have oil empregnated in them.

If you don't know WHY they are squealing, you cannot be sure that a solution being offered is a band-aid.

What you just said was the equivalent of me coming on here and saying, "I cut my finger, and it's bleeding."

Skier says, "try putting a bandaid an pressure on it."

Followed by you ofblong saying, "you need stitches to close that gaping wound."

flw · #18 Unread post by **flw** » Thu May 17, 2007 1:31 am

When I sprayed the pads, I didn't take a inspection type look at the pads. I just sprayed them down, dried them and put them back on.

I'll do more of a true inspection, minus the quality tools really needed for the inspection. Like a laboratory grade granite inspection table, height and other micrometer gages.

Although I can stop by my local auto mechanic and he'll let me do/look over my shoulder and do some basic checks. He gets my cars repairs for many years, so it good faith move for him. He also takes my cycle oil for free as well. I just reuse the jug each time.

#19 Unread post by **Skier** » Thu May 17, 2007 2:59 am

ofblong wrote:
Skier wrote:
ofblong wrote:
Skier wrote:Did you properly apply anti-squeal compound when you had the calipers off?
Why use this stuff? I mean its serves no real purpose. I compare it to using belt dressing on a belt. pointless cause it doesnt really work and just bandaids the true problem
How does eliminating the pad vibrating between the piston and the rotor "bandaid" the issue? It's called for in every vehicle I've changed brakes on and those don't squeal. They must be doing something right.
using liquid spray is bandaiding the issue. what is causing the breaks to squeal? Something isnt correctly tightened or there is something else wrong.

Three out of the three links directly above your post explain what brake squealing comes from and why anti-squeal compound fixes it.

ofblong wrote:
Skier wrote:My Civic has ceramic pads up front and those are some of the most squeal-prone materials you can get. I applied the anti-squeal compound included with the pads properly and they just do not squeal. It's recommended by Valvoline, the F650 brake FAQ, About.com's brake squeal page and a plethora of other sources, including most brake pad manufacturers.
ok well I dont use ceramic pads and the OP didnt mention ceramic pads so i "assumed" they were normal pads.

I did not mean to imply anyone else uses ceramic pads. I simply wanted to point out this "band aid" fix is OEM recommended for all pads including ceramics and it works.

Nibblet99 · Thu May 17, 2007 4:42 am

flw wrote:
Skier wrote:Did you properly apply anti-squeal compound when you had the calipers off?
I applied disk brake cleaner from a spray can, I don't know if that is the same or not.

Sorry I missed this before. Anti squeal compound and brake cleaner are not the same.

If you're using cleaner, get the pads out, Spray em down, then scrub, using an old toothbrush or the like. keep all sources of flame well away from the cleaner though, its pretty flamable

After that, either go buy and apply some anti-squeal compound, or (my preferance) ride the bike, and do the emergency stops.